A pattern I use which is great for large print center quilts isn't really a pattern, but a construction. I usually use at least a 2-yd. length of fabric squared to 40" x 71". In your case , 1-1/3 yards = 48", so I would take some coordinating fabrics (at least 6-8), cut them in various widths and cut your center fabric and insert the coordinating fabrics to make the center fabric longer, but at least 71" long. Add a 2-1/2" wide border around the center fabric. Then, using the same coordinating fabrics, cut various width strips and sew them together. Cut the strip sets to the width that you would like piano keys (I usually do 6"-8", sew the strip sets together, then measure and cut the borders. Add a solid border, then quilt and bind.
Using these measurements, you will have a quilt approximately 60" x 90" and according to my "cheat sheet", a twin is usually about 68" x 88".
Last edited by mckwilter; 06-08-2015 at 07:51 AM.